From the collections of the Imperial War Museum "How to make-do-and-mend." An exhibition arranged by the Board of Trade in Harrods Store in London to show "substitution and conversion" economies includes a fashion display, with models wearing a patchwork dressing gown, a frock made from old plus-fours and an overcoat borrowed from a husband. Less elegant but no less practical is an improvised cot, a sack stretched between two chairs